JP2018511757A - Shaft damper - Google Patents

Abstract

The present invention relates to a damping device for mounting between two separate components for vibration damping between components. The present invention relates to a damping device 100 for mounting on two separate parts for damping vibration between the parts, the damping device 100 comprising a first coupling member and a second coupling member. The first connecting member is connected to the second connecting member via an attenuation portion by ensuring relative movement of the two connecting members in the axial direction, and the attenuation portion is a shaft between the connecting members. Designed to damp directional relative motion. The damping device 100 comprises a bending joint 1 fixed to one of the connecting members, the bending joint 1 having an attachment member 11 for attachment to one of the components, the bending joint 1 being continuously stiff. It is designed as an interconnected component, and has a joint portion extending in the axial direction between a connecting member fixed to the bending joint 1 and the mounting member 11, and the bending joint 1 can be bent, particularly elastically. It is bent and arranged at a joint around at least one axis of rotation perpendicular to the axial direction. [Selection] Figure 5

Description

  The present invention relates to a damping device that is mounted between two separate components to damp vibrations between components.

  Common dampening devices are used to damp force effects (eg, force impact) on a component. Common damping devices are used, for example, in plumbing structures that prevent the sealing of pipes relative to other components for buildings, for example. For example, common damping devices are used to damp vibrations of machine parts relative to the machine housing. For example, common damping devices are used to damp vibrations between components in a building that can occur, for example, in the event of an earthquake. In this regard, a typical damping device has two connecting members spaced apart from each other in the axial direction and is connected between the two connecting members by an damping part arranged in the axial direction, The attenuation unit limits the relative movement in the axial direction to a certain range of displacement, and attenuates the relative movement in the axial direction.

  Depending on the field of application, there are different embodiments of the shaft damper. For example, such shaft dampers are designed as hydraulic dampers, eddy current dampers, viscous dampers or solid dampers. The shaft dampers mentioned as examples have different operating principles for damping the axial relative motion of the two connecting members as their damping parts. However, here all axial dampers are actually designed to allow relative movement in the axial direction of the connecting members within a displacement range, whereas they are all perpendicular to the axial direction. Maintain rigidity in the direction of. The influence of the relative force perpendicular to the axial direction of the first and second connecting members always means an unintended stress of the shaft damper. This is because the shaft damper is intentionally designed to allow axial relative motion.

  Proper use of a typical damping device between two axially spaced components will change the position of the component perpendicular to the axial direction, so a typical damping device is Means must be provided to prevent excessive stress in the vertical shaft damper. In these means, the shaft damper having the connecting member is usually not directly and firmly connected to the two connecting members, but the intermediate shaft bearing or the ball joint is provided on the connecting member of the shaft damper and connected to the component. Has been. This is because the middle shaft bearing or ball joint is arranged in such an orientation on the shaft damper so that the radius of the circular ring of the middle shaft bearing or the radius of the ball joint ball is flexible perpendicular to the axial direction. Can be. The connection of the connecting member to the component can be effected via a middle shaft bearing, so that tilting to the part around the axis of rotation perpendicular to the axial direction of the connecting member is possible. The connecting member and the inclination of the connecting member are made possible by ball joints around a plurality of rotation axes.

  Conventional damping devices in which the shaft damper is connected to the two components by a medium shaft bearing or ball joint have significant drawbacks due to their configuration. Due to its configuration, the bearing always has some bearing clearance (gap) in the radial direction of the bearing and thus in the axial direction of the damping device. Therefore, due to its construction, the center shaft bearing always has a bearing gap in the radial direction between the rings of the bearing. Furthermore, there may be radial clearance with respect to the bearing inner ring, depending on the engagement of the bearing bolts, in particular on the cylindrical bearing bolts. A typical damping device is intentionally provided in the axial direction between two components that are subject to relative movement in the axial direction, usually vibration or shock, and the damping device damps this axial relative movement of the components. Intentionally used for. Here, the provision of a middle shaft bearing or ball joint in a typical damping device means that a radial impact always occurs for the relative movement in each axial direction in the middle shaft bearing or ball joint. These radial impacts on the central shaft bearing or ball joint, which are unavoidable by proper use of the damping device, cause significant stress on the central shaft bearing or ball joint. In particular, this impact results in a continuous increase in bearing clearance. This is generally not desirable for attenuator devices, since on the one hand it is necessary to react so that the attenuator device is quickly attenuated. It should be taken into account that this is typically commonly used to damp relative movement in the axial direction of parts, typically in the millimeter range. On the other hand, an increase in the bearing clearance inevitably results in the destruction of the bearing, and consequently the malfunction of the entire damping device. Furthermore, the provision of a center shaft bearing or ball joint in the damping device represents a high cost. Furthermore, it is known from document DE 10 2006 016 701 A1 that the damping piston and the cylinder unit are fixed by means of fixing parts to the wheel suspension of the vehicle, this fixing part comprising a base, a shaft and a fork. The central axis of the base and the fork is located on a common axis, and the central axis of the shaft extends at a distance parallel to the common axis. This predefines the buckling direction of the fixing portion so that only the fixing portion is not permanently damaged in the direction in which other vehicle parts buckle when excessive stress occurs. Furthermore, a bearing for vibration isolation of different machine parts movable relative to each other is known from the patent No. 1803964 A2. The bearing comprises a shaft damper connected at each of its two axial ends to a pivot joint for reducing the horizontal stiffness of the bearing.

DE 10 2006 016 701 A1 Patent No. 1803964 A2

  The object of the present invention is to provide an attenuation device that can be manufactured as easily and cost-effectively as possible, and in particular can eliminate at least one of the above-mentioned drawbacks of conventional attenuation devices.

  As a solution to achieve the object of the present invention, the present invention proposes an attenuation device having the features of claim 1. The damping device according to the invention is designed to be installed separately between two components in order to damp vibrations between the components. The damping device includes a shaft damper having a first connecting member and a second connecting member. The shaft damper is connected to the first component by the first connecting member, and is connected to the second component by the second connecting member. The first connecting member is connected to the second connecting member by the damping part while ensuring the axial relative movement of the two connecting members with respect to each other, and the damping part is designed to attenuate the axial relative movement between the connecting members. The Therefore, the shaft damper of the damping device according to the present invention includes two connecting members and a damping portion. That is, the attenuation portion is disposed in the axial direction between the first connecting member and the second connecting member. The first connecting member is disposed on one axial side of the attenuation part, and the second coupling member is disposed on the other axial side of the attenuation part. Thereby, the axial extension of the attenuation portion can be made variable. Therefore, the damping part connects the two connecting members by guaranteeing the axial displacement possibility, and in particular provides the axial displacement possibility within the axial displacement range of the two connecting members. According to the invention, the damping device comprises a bent joint that is fastened to one of the two components. The flex joint has an attachment member for attachment to one of the two components. Furthermore, the bending joint has a joint part designed as a continuously rigidly interconnected part, extending in the axial direction between the bending joints and of at least one rotating shaft perpendicular to the axial direction in the joint part. Elastically bent around, the joint is exactly related to one axis of rotation perpendicular to the axial direction and is subject to bending stresses exerted on it by relative forces applied to the axial ends. At least one axially bent portion that maintains rigidity, and the bent portion in the direction of the force along the rotation axis is less than 5% of the axial length of the bent portion, and the bent portion is The bent portion has an extended length in a direction perpendicular to the rotation axis and perpendicular to the axial direction, and a joint portion of the bent joint is made of a solid material (Volmaterial).

  In one embodiment, the joint is manufactured as a single piece. In one embodiment, the joint portion is generated from a plurality of single members that are rigidly connected to each other to produce the joint portion, such as by a solid material bond, such as welding, or, for example, by connecting the single members together. It can be formed by frictional coupling by screwing firmly. A joint made of solid material can be made from several single pieces made of solid material. The single member ridge connection is preferably designed in such a way that relative movement of the members is not possible in the connection where the members are connected to each other, and is therefore in a fixed position at their junction, so While intentionally using the damping device, only by damaging the damping device allows relative movement of the members relative to each other at their joints. Thus, in the case of axial relative movement of components connected to each other by the damping device according to the invention, as long as the relative movement correlates with the displacement within the axial displacement range of the axial damper and thus within the functional damping range, The relative axial movement of the single parts of the joint does not occur at the joints in their axial damper range. Thus, when providing a frictional connection between parts, a correspondingly strong frictional connection is provided between the parts, preventing relative movement at their joints of the members within the functional damping range of the shaft damper. The construction of the joint part as a rigid interconnected continuous component is particularly advantageous as axial backlash is excluded in the joint part, and on the other hand when the damping device according to the invention is used properly. The damping device according to the invention is suitably used, on the other hand, the damping device reacts immediately in the case of relative movement of the components in the axial direction, and on the other hand because of the axial backlash at the joint. Wear is eliminated. Furthermore, the construction according to the invention, in particular the one-piece construction, allows easy production of wear-resistant bent joints. Therefore, it is particularly preferred that the entire flex joint is designed as a continuously rigid interconnected component so that the above-mentioned advantages of the corresponding configuration of the seam portion can still be enhanced.

  According to the present invention, when an external force exerts an impact on the connecting member in which the bending joint is fixed in the direction of the relative force to the mounting member of the bending joint, the bending joint rotates around the rotation axis at the joint. And is arranged perpendicular to the axial direction and perpendicular to the rotational axis. Such an external force can be generated perpendicular to the axial direction, for example due to the relative movement of the component to which the damping device is attached, when the damping device according to the invention is used properly. The bending of the joint part may be caused by the action of a corresponding external force having a component that is perpendicular to the axis of rotation and perpendicular to the axial direction. When such an external force is generated, the bent connecting portion is preferably designed so as to be bent only by the connecting portion. The flex joint is preferably designed so that it can be bent in the joint around several axes of rotation perpendicular to the axial direction. As used herein, the term “can be bent” always includes “elastically bending”. The elastic flexibility of the bending joint means a particular advantage. In particular, the bending joint wear can be minimized under stresses varying perpendicular to the axial direction. Furthermore, elastic flexibility is always accompanied by the fact that the bending joint being bent tends to return to an unbent rest position. Even excessive deflection of components connected perpendicular to the axial direction by the damping device can be canceled out.

  The flex joint is preferably designed so that it does not bend in the case of stress due to forces acting only in the axial direction between the connecting member and the mounting member, and collides uniformly in a plane perpendicular to the flex joint, Therefore, when the damping device according to the present invention is used properly between two components, the relative movement of the components in the axial direction is directly converted into the relative movement of the connecting member, and the damping device A shaft damper can immediately damp the relative motion. Therefore, in the damping device, preferably, the shaft damper and the bending joint are aligned with each other so that the bending joint maintains rigidity in the axial direction within the axial damping range of the shaft damper, that is, the axial force is reduced by the damping device. When acting on the shaft damper, the shaft damper always allows displacement of the connecting member within the displacement range before the bending joint bends.

  The bending joint is particularly preferably only when a relative force acting perpendicular to the rotational direction and the axial direction is applied between the mounting member and the connecting member fixed to the bending joint. Bend in the part. In particular, for this purpose, the bending of the mounting member is excluded here. In particular, when a corresponding force is applied, it can be excluded that the axial edges of the bent joint each stretch by at least 5%, in particular the bending of the bent joint is at least 10% of the axial length. is there. Therefore, the bending joint can be fixed sufficiently firmly to the shaft damper and the part. Particularly preferably, the joint portion has a stretch length of at least 50%, and particularly preferably 50% to 90% of the total stretch length in the axial direction of the bent joint. Therefore, bending workability can be guaranteed particularly easily. Furthermore, the flexibility is limited to the connecting portion. In one embodiment, the flexure joint of the damping device can be manufactured integrally with the shaft damper. In an embodiment that can be realized particularly easily and economically, the bending joint is designed as a separate member from the shaft damper and is alternately attached to the connecting member and is removable. For this purpose, the bending joint preferably includes a fastening portion that can be fastened to the connecting member. The connecting part can preferably be designed as a rigid part and in particular can be arranged at the axial end of the flex joint facing the mounting member. In one embodiment, such a bent joint itself is designed to be fastened to one of the connecting members of the shaft damper or is fastened to a damping device according to the invention, wherein the bent joint has the configuration An attachment member for attaching to one of the parts is further provided, and the joint portion is disposed between the attachment member and the fastening portion. Particularly preferably, the joint part is provided with a bending member, and the bending member, the attachment member and the fastening part are designed as a single member firmly connected to each other in the bending joint according to the present invention. For example, the bending member is fastened and screwed to the attachment member and / or the fastening portion by the clamping device, or is clogged in a state of being fastened to the fastening member and / or the fastening portion. The corresponding structure of the bending joint according to the invention makes it possible to manufacture bending joints very efficiently and can be adapted very easily and cost-effectively to the different damping devices provided according to the invention. Can be implied, and the bending member can be used intentionally to achieve the desired properties of the bending joint, for example, the selection of the material of interest and / or the material of the bending joint Determined by the thickness. In one embodiment, the attachment member and / or the fastening portion may have a fixed flange that forms a bearing surface extending in an axial direction and a lateral direction, the bending member supported on the bearing surface, and the bearing A corresponding portion provided on the side of the bending member whose surface is turned off, and a mating member pressed against the bending member toward the fixing flange, in particular, by screwing with the fixing flange, A frictional coupling occurs between the bending member and the fixed flange. It is particularly preferred that the mating member is designed as a pressing part for the angle member, the angle member being a support part extending away from the pressing surface and extending perpendicularly to the bearing surface and a support which is additionally fixed to the mounting part or the fastening part. Part, and it is particularly preferable to screw into the part. As a manufacturing method of the bending joint, the bending member is pressed against the mounting member or the fixing flange of the bending portion by the pressing portion in the first step, and then additional fixing via the support portion is performed in the second step. Is particularly advantageous. In this case, the pressing part and the fixed flange have rounded edges that limit the contact surface with the bending member in the axial direction, and in the case of bending stress, an excessive load is effectively avoided by the edge adjacent to the bending member. can do. In one embodiment, the bending member is secured to the attachment member and / or the fastening portion by a clamp member. For this purpose, for example, the attachment member or the fastening part can have a V-shaped recess, the bending member being inserted into the V-shaped recess, and a clamping member on each side of the bending member. The clamp member is inserted into the clamp member, and the clamp member is fixed at the attachment member or the fastening portion, respectively, so that each of the two clamp members is pressed against the attachment member or the fastening portion and the bending member within the V-shaped recess. A friction connection is formed between the members and an attachment member or fastening portion in the V-shaped recess is formed. In this embodiment, it is also particularly advantageous for the clamping member to have a rounded edge at the axial end against the bending member in order to avoid excessive loading of the bending member in the case of bending stresses, so that The durability of the bent joint can be ensured.

  It will be apparent to those skilled in the art that the damping device according to the present invention has substantial advantages compared to conventional damping devices. On the one hand, the bendability of the bending joint around the axis of rotation perpendicular to the axial direction ensures that the damper of the damping device is not excessively exposed to forces perpendicular to the axial direction. The damping characteristics of the shaft damper are always as good as possible and wear of the shaft damper is minimized. The damping device according to the invention is therefore characterized by its robustness and durability. On the one hand, the bending joint simultaneously guarantees the installation of an axial damper with minimal backlash on the two components, and the damping device according to the invention guarantees the damping of the axial relative movement between the parts as soon as possible can do. Furthermore, in addition to the advantageous functional properties of the damping device, its manufacture is particularly cost-effective and can produce a bent joint more cost-effectively than joint bearings or ball joints used in conventional damping devices. So it is particularly advantageous. Furthermore, the bent joint can be easily manufactured maintenance-free, which can reduce the maintenance of the damping device according to the invention.

  In one embodiment of the damping device according to the present invention, a first bent joint is disposed on the first connecting member of the shaft damper, a second bent joint is disposed on the second connecting member of the shaft damper, and one is connected by the shaft damper. It can be fixed to two components with a flex joint. In one embodiment, the damping device has one flex joint secured to one of the connecting members of the shaft damper so that when the damping device is properly used, one connecting member is attached directly to the component. The other connecting member can be attached to the other component through a bending joint. Particularly preferably, the damping device comprises a bend joint arrangement which makes it possible to fix the shaft damper to two components that can be bent around two mutually perpendicular axes of rotation perpendicular to the axial direction. In this bent joint configuration, for example, the first bent joint is fixed to the first connecting member, and the second bent joint is fixed to the second connecting member. The second bending joint is bent around a second rotation axis perpendicular to the axial direction, and the rotation axes are orthogonal to each other. In the bent joint configuration, for example, only one bent joint is provided in one connecting member of the shaft damper, and this single bent joint can be bent around two rotation axes perpendicular to each other in the axial direction. it can. Such a bent joint is particularly preferably provided on both connecting members. The provision of a corresponding bent joint configuration is that all relative movements perpendicular to the axial direction performed by the two components to which the damping device is mounted axially are at least partly occupied by the bent joint configuration, The damper can be particularly well protected against excessive stresses perpendicular to the axial direction.

  In one embodiment, the joint portion of the at least one bend joint has at least one bend associated with exactly one axis of rotation perpendicular to the axial direction, and the bend joint is notably in the axial direction associated with the bend. In the case of the stress of the mounting member with respect to the connecting member having a force perpendicular to the rotation axis and perpendicular to the rotation axis, the bending joint is bent exclusively within the axial extension of the bending portion. This allows the other axial cross-section of the flex joint to remain rigid so that it does not bend when a force is applied. In the case of a multi-member configuration of a bending joint, the bending portion can include a bending member or can be configured using a bending member. The limitation of bendability for one axial bend means the particular advantage that the bend is designed particularly strongly outside the bend and the bend ensures the bending function of the bend joint. Due to the fact that exactly one axis of rotation is associated with the bend, the bend is a bend applied by a relative force acting at its axial end in the direction of the force along the axis of rotation. In the case of stress, it remains rigid, which means the special stability of the flex joint. The bending of the bend can occur in particular under the influence of a corresponding external force having a force component perpendicular to the axial direction perpendicular to the associated rotation axis.

  In one embodiment, the connecting portion has a first bent portion and a second bent portion arranged rearward in the axial direction, the bending joint is bent, particularly elastically bent, and the first bent portion The first rotation axis perpendicular to the axial direction and the axial direction perpendicular to the first axial direction and the second rotation axis perpendicular to the axial direction and the first axial direction at the second bent portion are rotated. The bend joint is particularly preferably designed such that the first bend is designed to be rigid with respect to the relative forces applied to its axial end along the first axis of rotation. That is, the bending stress related to bending and / or the second bend is designed to be rigid with respect to the relative force applied along the second axis of rotation at the axial end, ie, the first rotation It has rigidity against bending stress related to bending about the axis. This means that when a relative force is applied between the attachment member and the connecting member in which the bending joint is fixed in the direction along the first rotation axis, the first bending portion, not the first bending portion. When the bending joint is bent at the two bending portions and a relative force is applied along the second rotation axis, the bending joint is bent at the first bending portion instead of the second bending portion. In this embodiment of the damping device according to the invention, the high rigidity of the bending joint is simultaneously guaranteed, which is advantageous for the robustness and functionality of the damping device to ensure axial damping, perpendicular to the axial direction of the damping device. The forces at the oriented axial ends can be absorbed by the flex joint. In embodiments where the flex joint includes several single members, the first bend has a first bend, the second bend has a second bend, and the bend properties of both bends are: It is determined by the bending characteristics of each bending member.

  In particular, it is preferable to provide a rigid intermediate portion that connects the bent portions in the axial direction of the first bent portion and the second bent portion. When a relative force perpendicular to the axial direction is applied to the axial end of the bending joint, when a relative force is applied to the axial end of the bending joint perpendicular to the axial direction, Due to the rigid configuration, bending does not occur in the intermediate portion, but bending occurs only in the bent portion. Providing an intermediate portion between the two bent portions can be particularly advantageous to ensure sufficient rigidity of the bent joint. In an embodiment in which the bending joint consists of several members, for example, the bending joint comprises one fastening part, a mounting member, an intermediate part and two bending members as separate members, according to the invention, The members are firmly connected to each other at their joints, i.e. cannot move relative to each other at their joints as intended. For example, the first bending member can be fixed to the attachment member, the second bending member can be fixed to the fastening portion, the intermediate portion is fixed to both the bending members, and the two bending members are connected to each other. The bending member can be fixed to the intermediate portion as described above with respect to the fastening portion or the attachment member. The bending member can be fixed to the intermediate portion as described above with respect to the fastening portion or the attachment member. For example, the intermediate part can have two fixing flanges axially offset from each other or two V-shaped recesses axially offset from each other for this purpose, said V-shaped recesses being their The V-shaped tips are oriented towards each other, for example, the intermediate portion has a V-shaped recess and a fixed flange offset in the axial direction.

  Particularly preferably, the intermediate part has an extension length in all three dimensions that is at least four times the extension length of each bend, along a direction perpendicular to the axial direction and perpendicular to the respective axis of rotation. It is preferable. The rigidity of the intermediate part is particularly easily achieved when a force is applied to the bending joint at the axial end perpendicular to the axial direction. In this way, the intermediate part always remains rigid in the case of stresses in the bending joint at the axial end with a relative force perpendicular to the axial direction, and bending of the bending joint occurs at the bending part, in particular Only at the bend. In one embodiment, the at least one bent portion is made of only one material, and the material of the bent portion has a thickness in a direction perpendicular to the axial direction and a thickness in a direction perpendicular to the rotation axis. %, Particularly less than 3% of the axial length of the bent joint, and particularly preferably less than 5% of the stretched length of the bent portion. This can be applied to any bend accordingly. The rotation axis related to the bent portion is an axis that can bend the bent portion. The bending characteristics of the bent part can be adjusted particularly advantageously when bent about the associated rotational axis, depending on the ratio of the thickness of the bent part and the axial length of the bent joint, especially in the axial direction of the bent part. Depends on length. In particular, the specified ratio makes it possible to use the elastic bendability of the bent part, and at the same time, it is possible to use a material having strength that has sufficient rigidity at least in the axial direction of the bent part and to which the damping device is attached The effect is already exhibited with respect to the minimum deflection, and particularly good attenuation characteristics can be used for the attenuation device.

  In one embodiment, the stretch length of the at least one bend along its associated axis of rotation is at least twice, in particular the extension bend perpendicular to the associated axis of rotation and perpendicular to the axial direction. At least 4 times greater than the stretch length. This is respectively associated with the minimum stretch length of the bend in the corresponding direction. In this embodiment, the bending joint has an overall positive effect on the stiffness, and thus bending when the forces related to the damping characteristics and the direct response of the damping device act parallel to its associated axis of rotation. High rigidity of the part can be ensured. Of course, the advantageous properties of the bends described above can be provided for all bends. In one embodiment, the entire bending portion of the bending joint, in particular the entire bending joint, is made of only one material. For example, steel is advantageous as such a material. Here, a steel material having a high yield strength capable of obtaining the elastic bending workability of the bending joint is preferable, and this is achieved particularly by ensuring the long durability of the bending joint.

  In one embodiment, the joint, in particular a bent joint, is made of a solid material, in particular at least one bend has a plate-like shape and its planar extension is axial and related. Fixed by rotating shaft. The entire bending joint is preferably made of a solid material. In one embodiment, the bending member of the bending portion has a plate-like shape, and its planar extension is fixed by the axial direction and the associated rotation axis. Due to the manufacture of the joint part or the entire bend joint as a whole, a particularly firm (strong) construction of the bend joint can be achieved, and for the construction of the entire bend member having a bend or plate-like shape, A very good bendability, in particular a very good elastic bendability of the bend, is ensured, while at the same time the bend is rigid against the forces acting on the axial end along the rotation axis associated with it, This can be particularly advantageous for the stiffness of flex joints. Here, the shape of the plate is characterized in that the length at the planar extension of the plate is substantially greater than the length of the plate along the thickness of the plate. For example, the extension length of the planar extension can each be at least 5 times, especially at least 10 times as large as the thickness of the plate.

  In one embodiment, the bending joint has a first flange that is fixed to the first or second connecting member and a second flange that forms an attachment member for the bending joint. The bending joint can be particularly easily and firmly fixed to the connecting member and parts of the shaft damper and is removable, and the first flange can act as a fastening portion of the bending joint. In this way, the damping device can be manufactured and mounted between two parts in a particularly simple and cost-effective manner. In particular, the flex joint can be manufactured independently of a shaft damper, which greatly simplifies the overall production of the damping device and reduces the price of the damping device. In this case, each flange is at least four times the length of at least one bend along the direction perpendicular to the axial direction and along the direction perpendicular to the associated axis of rotation in all three dimensions. Can have an extension. This is particularly applicable to all bends. Therefore, it can be assured that the flange always maintains rigidity and that the bending joint bends exclusively at the joint for all forces impinging on the bending joint perpendicular to the axial direction.

  For the damping device according to the invention, it is not necessary to say that a bending joint can be provided on each of the two connecting members of the shaft damper, where each bending joint is an advantageous embodiment of the damping device according to the invention. Can have the characteristics outlined herein for one flex joint.

  In one embodiment, the axial damper is designed as a viscous damper having a housing and a piston, and the piston is arranged to be axially displaceable relative to the housing within a displacement range. A viscous medium is provided in the housing. The housing, the piston and the viscous medium are adapted and arranged relative to each other, so that the piston is arranged at any position within the displacement range with the first axial piston part outside the housing, and the second axial piston part is the housing. Soaked in a portion of the viscous medium to be disposed within. Thus, the piston is always in the housing at any possible position within the displacement range, ie axially in addition to the first axial end of the housing and simultaneously with the second axial piston part inside the housing. The first axial piston portion outside and is always immersed in a section in a viscous medium in the housing. The first connecting member is disposed at the first axial end portion of the piston, and the second connecting member is disposed at the second axial end portion of the housing. This results from the axial damping of the shaft damper due to the interaction between the piston and the housing. In the case of relative axial displacements of the connecting members with respect to each other, the immersion depth of the piston in the viscous medium changes inducibly, which causes the viscous medium to sag on the piston during the change of immersion depth. (Cut). Therefore, attenuation of the relative axial movement of the connecting member is guaranteed. Depending on the intended use, media having different viscosity characteristics can be utilized to obtain different damping characteristics. The damping device according to the present invention with a shaft damper designed as a viscous damper provides a maintenance-free damping device configuration, and further the two components of the damping device, the relative axial relationship of the connecting members relative to each other. The movement is subjected to immediate damping due to the interaction of the piston, housing and viscous medium, and the damping device is attached.

  In one embodiment, the viscous medium is provided as a viscous fluid, and the piston is disposed at an arbitrary position of the piston within the housing within a displacement range, and is positioned in an axial direction between the first piston portion and the second piston portion. It has 3 piston parts. This is provided with a guide between the third piston portion and the housing. The guide avoids sliding contact between the piston and the housing. The guide can be designed, for example, in the form of a strip, for example as a Teflon member, as a hard tissue member or as a brass member. The viscous fluid is arranged in the axial direction only on the side surface of the third piston portion where the second piston portion is located. The guide can be designed in such a way that there is a leak between the guide and the third piston part and / or between the guide and the second piston part, and the viscous fluid is between the guide and the third piston part. And / or between the guide and the housing. In particular, lubrication between the guide and the piston and / or between the guide and the housing can be ensured. In one embodiment, in addition to the guide, a gasket is provided along the axial direction of the first piston portion, and the gasket is disposed on the inside of the housing and on the piston to prevent discharge of viscous fluid from the housing. Designed to be. In one embodiment, the viscous medium is designed as a viscoelastic medium, which fills the entire volume in the working chamber of the housing and is in a housing not specifically filled by a piston. The housing can comprise a working chamber, and in particular can consist of a working chamber. As a result, the piston is completely surrounded by a viscoelastic medium in the working chamber of the housing. In this way it is ensured that the axial damper reacts immediately to the axial relative movement of the connecting member and immediately attenuates such relative movement. The piston and the housing are particularly preferably designed to correspond to each other, so that the volume of the piston located inside the working chamber of the housing is the same within the volume at any position of the piston. This means, for example, that the piston has a cylindrical part whose cylindrical axis extends in the axial direction and the working chamber or housing always extends completely within the range of movement in any position of the piston. Let

  Furthermore, the invention relates to a system comprising at least two damping devices according to the invention, wherein the axial direction of the first damping device is at least 30 degrees, in particular from 60 to 120 degrees with respect to the axial direction of the second damping device. Form. The corresponding system according to the invention ensures a particularly strong mutual support of the two components connected to each other through the system by making available a very good damping of the relative movement. The system according to the invention particularly preferably has the first damping device axially connecting the first component with the second component and the second damping device with the first component in the second configuration. It can be used to axially connect with a part. With regard to the definition of “axial”, it is noted that the axial direction is always set for a specific damping device according to the invention. For example, a system according to the present invention provides a first component attenuated support on a second component, or a first component attenuated support for a second component and a third component. Both axial dampers have an axial direction between the first component and the second component and / or between the first component and the second component.

  Furthermore, the invention relates to the use of a flex joint for mounting a shaft damper designed to dampen the relative movement of two components relative to one another in the axial direction of one of the components. A flex joint is designed as a fastening part, a mounting member spaced axially from the fastening part, and a connecting part designed to connect the fastening part to the mounting member and are interconnected firmly and firmly. Part. The joint portion can be elastically bent around at least one rotation axis perpendicular to the axial direction. The joint of the bend has at least one axial bend associated with exactly one axis of rotation perpendicular to the axial direction and is applied to the axial end in the direction of the force along the axis of rotation. The bending portion has a plate-like shape in which a planar extension is fixed by an axial direction and an associated rotation axis, The bent portion is less than 5% of the axial length of the bent portion, has a stretched length perpendicular to the rotation axis related to the bent portion, and perpendicular to the axial direction, and the bent portion Has an extension length along the associated axis of rotation that is at least four times greater than the extension length of the bend in the direction perpendicular to the axis of associated rotation and perpendicular to the axial direction. The part is made of solid material. For use in accordance with the present invention, the component is secured with a fastener to the shaft damper and an attachment member to the component. The shaft damper preferably includes two connecting members disposed at an interval in the axial direction, and an attenuation portion disposed between the connecting members in the axial direction, and the first connecting member includes the second connecting member. The attenuating part is connected to the second connecting member by ensuring a damped axial relative movement between the two connecting members, and the flex joint is connected to the first connecting member of the shaft damper with its first part at its fixed part Fixed to the component together with its mounting member, the second connecting member of the shaft damper is fixed to the second component, and in particular a second bending joint is provided between the second connecting member and the second component, The second bent joint is fixed to the second connecting member of the shaft damper at the fastening portion and to the second component together with the mounting member. The use according to the invention of a bent joint can have further features and advantages, as will be clear from the above description of the damping device according to the invention.

  Furthermore, the invention relates to a bending joint for use in the damping device according to the invention. The bending joint includes a fastening portion that can be attached to one of the two coupling members of the shaft damper, and an attachment member that can be attached to one of the two components. The flex joint is configured as a component that is continuously rigidly interconnected and has a joint portion extending axially between the fastening portion and the mounting member, the flex joint having at least one rotation perpendicular to the axial direction. It can be bent elastically at its joint around the axis. The joint has an axial bend associated with exactly one axis of rotation that is perpendicular to the axial direction, and itself by a relative force applied to the axial end in the direction of the force along the axis of rotation. The bending portion has a plate-like shape in which a planar extension portion is fixed by an axial direction and an associated rotation shaft, and the bending portion has a bending shape. Less than 5% of the axial length of the part, and has an extension length perpendicular to the axis of rotation associated with the bent part and perpendicular to the axial direction, the bent part being an associated axis of rotation And the joint portion of the flex joint is a solid material having a stretch length that is at least four times greater than the stretch length of the bend in the direction perpendicular to the associated rotational axis and perpendicular to the axial direction. It is made.

  The bending joint can have further features and advantages which are each apparent from the above description of the damping device according to the invention.

  Furthermore, the invention relates to a method for mounting an axial damper between two components designed to damp the relative axial movement between the two components, around at least one axis of rotation perpendicular to the axial direction. The axial end of the bending joint that can be bent elastically at the axis is fixed to the axial end of the axial damper, and the joint is at least one precisely associated with one rotational axis perpendicular to the axial direction. Having one axial bend and maintaining rigidity with respect to bending stress applied to itself by a relative force applied to the axial end in the direction of the force along its axis of rotation, said bend being The planar extending portion has a plate-like shape fixed by an axial direction and a rotation axis related thereto, and the bent portion is less than 5% of the axial length of the bent portion, and the bent portion Related to the axis of rotation Straight, and having an extension length in a direction perpendicular to the axial direction, the bend has an extension length along an associated rotation axis, and is perpendicular to the associated rotation axis and the axial direction. At least four times the extension length of the bent portion in the direction perpendicular to the bent joint, the joint portion of the bent joint is made of a solid material, and the other axial end portion of the bent joint is fixed to one of the components. The Particularly preferably, the axial end of the second bendable joint that can be bent is fixed to the axial end opposite to the axial damper, especially around at least one axis of rotation perpendicular to the axial direction, The other axial end of the second bent joint is fastened to another component. This method suggests advantages and can have further features, as will be apparent from the above description of the damping device according to the invention.

  Hereinafter, the present invention will be described in detail based on different embodiments with reference to four drawings.

In FIG. 1, the schematic of one Embodiment of the bending joint which concerns on this invention is shown. FIG. 2 shows a schematic view of a further embodiment of a flex joint according to the present invention. FIG. 3 shows a schematic view of a further embodiment of a flex joint according to the present invention. FIG. 4 shows a schematic view of a further embodiment of a flex joint according to the present invention. FIG. 5 shows a schematic diagram of an embodiment of an attenuation device according to the present invention. FIG. 6 shows a schematic view of a further embodiment of the damping device according to the invention.

  An embodiment of a flex joint 1 according to the present invention is shown in FIG. 1, including FIGS. 1a, 1b and 1c. A top view as viewed from obliquely above the axial direction A is shown in FIG. 1a, and a top view from a first direction perpendicular to the axial direction A is shown in FIG. 1b. A top view from a second direction, which is also perpendicular, is shown in FIG. 1c.

  As shown in FIG. 1, the embodiment in which the bending joint 1 according to the present invention is illustrated includes an attachment member 11 and a fastening portion 15 that is spaced apart from the attachment member 11 in the axial direction A. The attachment member 11 and the fastening portion 15 are connected to each other by a joint portion, and here are designed identically as a flange. The joint portion includes a first bent portion 12, an intermediate portion 13, and a second bent portion 14. The bent portions 12, 14 are arranged behind the other in the axial direction, and the intermediate portion 13 is the first bent portion. 12 and the second bent portion 14 are provided in the axial direction. The bending joint 1 of FIG. 1 is designed as an integral unit.

  The bent joint is bent around the first bent portion 12 around the first rotation axis perpendicular to the axial direction A, and bent at the second bent portion 14 around the second rotation axis perpendicular to the axial direction A. It is possible that both axes of rotation are perpendicular to each other. The rotation axis associated with the first bend 12 extends vertically at the drawing level according to FIG. 1c, and the second rotation axis associated with the second bend 14 extends vertically at the drawing level in FIG. 1b. ing. Each of the bent portions 12 and 14 has a plate-like shape, and its thickness is substantially smaller than the length of the planar extension portion. As a result, both plate shapes of both bent portions 12 and 14 are twisted 90 degrees with respect to each other. Since the typical bending joint 1 is made from only one material, it can be produced in a particularly cost-effective manner, in particular the bending joint 1 can be rugged, with sufficiently high yield strength and strength. As a result, the bent portions 12 and 14 ensure the elastic flexibility of the bent joint 1 without fatigue.

  In the illustrated bending joint 1, when a relative force acts perpendicularly to the axial direction A between the attachment member 11 and the fastening portion 15, the bending portion 1 is bent only at the bending portions 12 and 14. On the other hand, the attachment member 11, the intermediate portion 13, and the fastening portion 15 remain rigid. This is because the extension length of the bent portions 12 and 14 perpendicular to the axial direction A and the rotation axis associated therewith, that is, the thickness of the platform of the bent portions 12 and 14, respectively, are the attachment member 11 and the intermediate portion 13 respectively. And it is considerably smaller than the extending length of the fastening part 15 in the same direction. For each bend 12, 14, the large ratio between the axial length of each bend 12, 14 and the thickness of each bend 12, 14 is an elastic bend around the associated axis of bend 12, 14. The long extension of the intermediate part 13, the fastening part 15 and the mounting member 11 at the same time guarantees the rigid behavior of these components of the bending joint 1 during bending of the bending parts 12, 14. Furthermore, the extending lengths in the axial direction A of the attachment members 11, 12, the intermediate portion 13, and the fastening portion 15 are at least three times the thickness at which each of the bent portions 12, 14 contributes to their remaining rigidity. large.

  Furthermore, a special feature of the bending joint 1 according to FIG. 1 is that each bend 12, 14 has its extension length perpendicular to its associated axis of rotation and perpendicular to the axial direction A of the associated axis of rotation. It is designed to be substantially smaller than its stretched length. Accordingly, the bending joint 1 described above has the first bending portion 12 in the case of a relative force acting on the attachment member 11 and the fastening portion 15 perpendicular to the axial direction A and perpendicular to the first rotation axis. The second bent portion 14 remains a rigid body. In the case of a relative force acting perpendicular to the second rotation axis and perpendicular to the axial direction A, the bending joint 1 is bent only by the second bending portion 14, and the first bending portion 12 Not done. The first bent portion 12 maintains rigidity in the case of relative force acting on the bent joint 1 of the attachment member 11 and the fastening portion 15 along the first rotation axis, and the second bent portion 14 In the case of a relative force acting between the attachment member 11 and the fastening portion 15 along the two rotation axes, the rigidity is maintained. The illustrated bending joint 1 cannot bend elastically in the case of stress (pressure) against a relative force parallel to the axial direction A between the attachment member 11 and the fastening portion 15. Therefore, when the representative bending joint 1 is used in the damping device according to the present invention, it has the advantage that it can absorb force from any direction perpendicular to the axial direction A by being bent elastically. As a result, when used in a damping device according to the present invention, it is possible to directly couple the shaft damper to the component in the axial direction A, and at the same time, the excessive stress of the shaft damper due to the force perpendicular to the axial direction A Stop at.

  A further embodiment of a flex joint according to the present invention is shown in FIG. 2, including FIGS. 2a and 2b. A top view from a first direction perpendicular to the axial direction A is shown in FIG. 2a, and a top view from a second direction perpendicular to the axial direction A and the first direction is shown in FIG. 2b. . The bending joint 1 according to FIG. 2 differs from the bending joint 1 according to FIG. 1 in that there is only one bending part 12 connecting the attachment member 11 and the fastening part 15 of the bending joint 1. As a result, the bending joint 1 according to FIG. 2 does not have the intermediate part 13. Rather, the bend 12 only forms the bend of the bend joint 1 according to FIG. As described with reference to FIG. 1, this is because of the geometric design of the bending portion 12 when the mounting member 11 and the fastening portion 15 are subjected to mutual relative forces perpendicular to the rotation axis related to the bending portion 12. . Similar to the bending joint 1 according to FIG. 1, the bending joint 1 according to FIG. 2 consists of one material, namely steel, and the geometric design of the mounting member 11, and corresponding components of the bending part 12 and the fastening part 15. 1 corresponds to the geometric design of the corresponding component of the bend joint 1 according to FIG. However, the bending joint 1 in FIG. 1 can be bent with respect to two rotation axes perpendicular to the axial direction A, but the bending joint 1 in FIG. 2 bends with respect to one rotation axis perpendicular to the axial direction A. be able to. The flex joint 1 of FIG. 2 can be advantageously manufactured more cost-effectively than the flex joint 1 of FIG. 1, and can advantageously be incorporated into the damping device 100 according to the invention. For example, the bending joint 1 according to FIG. 2 can be used in such a mounting situation in the damping device 100 according to the invention and, due to its structure, only performs a relative movement in one direction perpendicular to the axial direction A. Can do. For example, the bending joint 1 according to FIG. 2 can be used in the damping device 100, so that the bending joint 1 is arranged on each connecting member of the shaft damper, and the bending joint 1 is mutually connected around the axial direction A. Twisted in 90 degrees, such a damping device 100 also has a bent joint configuration where any force perpendicular to the axial direction A means bending of the bent joint device, so that the damping device 100 is clamped. Excessive stress on the shaft damper due to the relative forces between the two components can be at least partially avoided.

  A further embodiment of a bending joint according to the invention is shown schematically in FIG. The embodiment shown in FIG. 3, like the embodiment shown in FIG. 1, includes two bends 12, 14 whose intermediate portions are arranged in the axial direction. The embodiment according to FIG. 3 is basically not designed as an integral component like the embodiment according to FIG. 1, but is made up of several single parts that are firmly connected to each other. Is shown.

  The embodiment according to FIG. 3 has a mounting member 11 with a fixing flange 110. The fixed flange 110 has a support surface on which the first bending member 120 surrounded by the first bending portion 12 is placed. The first bending member 120 is pressed against the support surface of the fixing flange 110 by the angle member 16. For this purpose, the fixing flange 110 has two bushings through which the screws 17 are fitted, whereas the angle member 16 is designed as a counter plate and the screws 17 are screwed in. The pressing portion 161 having two screw holes is provided. Therefore, the pressing portion 161 is pressed against the first bending member 120 toward the fixed flange 110 by the screw 17. Thus, the screw connection creates a frictional connection between the first bending member 120 and the attachment member 11. Furthermore, the angle member 16 has a support portion 162 that extends perpendicularly from the pressing surface 161 to the bearing surface. The support portion 162 is provided with a recess, and this is provided with a recess 17. The recess 17 is screwed into a screw hole provided in the attachment member 11, and the support portion 162 is pressed against the attachment member 11. . This ensures additional support of the angle member 16 on the mounting member 11 and improves the durability of the embodiment according to FIG.

  The first bending member 120 is fixed in correspondence with the intermediate portion 13 having the fixing flange 130 to which the intermediate portion 13 corresponds. Furthermore, the intermediate part 13 has a further fixing flange 130 arranged axially spaced from the first fixing flange 130 and arranged twisted 90 degrees. The second bending member 140 of the present embodiment surrounded by the second bending portion 14 is fixed to the second fixing flange 130 as described above. The second bending member 140 is fixed again to the fixing flange 150 of the fastening portion 15 by the method described above. Here, the attachment member 11 and the fastening portion 15 are designed identically. From the described embodiment, the bending joint 1 is ensured by a friction-rigid connection between the mounting member 120 and the intermediate part 13, the intermediate part 13 and the fastening part 15, so that the bending joint 1 is continuously and firmly connected to each other. Designed as a connected component, the damping device according to the invention does not itself have an axial backlash, which shows the particularly advantageous properties of the bending joint 1 and the damping device according to the invention. Yes. In FIG. 3, the fixing flanges 110, 130, 150 and the angle member 16 all have rounded edges at the axial ends attached to the bending members 120, 140, so that they last for a long time. Even so, since the fixing flanges 110, 130, 150 and the end of the angle member 16 are fixed, the stress of the bending members 120, 140 often changes.

  A further embodiment of a bending joint 1 according to the invention is shown in FIG. 4 as a schematic diagram including FIGS. 4a and 4b. In order to explain the realization of a rigid connection between the single members of the bending joint 1, the transition between the fastening part 15 and the second bending member 140 is enlarged in FIG. 4b. The embodiment according to FIG. 4 differs only in that it largely corresponds to the embodiment according to FIG. 3 and is designed so that the rigid connection between the single members is different, so that the corresponding In addition to providing another fastening device for the attachment member 11 of the part 13, the fastening part 15 can be formed. In the embodiment according to FIG. 4, the attachment member 11 and the fastening part 15 having the same design here each have a V-shaped recess, and the intermediate part 13 has two V-shaped recesses twisted 90 degrees about the axial direction A. And its V shape has a tip. The 1st bending member 120 is arrange | positioned in the 1st V-shaped recessed part of the intermediate part 13 in the V-shaped recessed part of the attachment member 11, and the clamp member 18 arrange | positioned at both the attachment member 11 and the intermediate part 13 is respectively It is provided in the side part of the bending member 120 in each V-shaped recessed part. Accordingly, the second bending member 140 is disposed in the second V-shaped concave portion of the intermediate portion 13 and the V-shaped concave portion of the fastening portion 15, and is packed into the intermediate portion 13 and the fastening portion 15 by the corresponding clamp member 18. An implementation of the obstruction of the bending members 120, 140 in the mounting member 11, the intermediate part 13 and the fastening part 15 is shown in FIG. 4b. Each of the clamp members 18 is designed to have an angle, and one leg has a wedge shape. In addition to the second bending member 140, the clamp member 18 is disposed in a V-shaped recess. Each of the clamp members 18 is screwed into the fastening portion 15 via a second leg portion having an angle, and the fastening portion 15 has a screw hole for this purpose. The clamp member 18 is inserted into the V-shaped concave portion in addition to the second bending member 140, and is particularly pushed or hit to generate a pressing force on the second bending member 140. After the insertion, the position of the clamp member 18 is fixed to the V-shaped recess by the screw 17. With its wedge-shaped legs, the clamp member 18 therefore abuts the fastening portion 15 as well as the second bending member 140, thereby providing the second bending member 140 and the two clamping members in the V-shaped recess. A frictional coupling occurs between 18 and the fastening portion 15. The second bending member 140 is connected to the clamp member 18 and the fastening portion 15 through this friction connection, and the strength thereof is the damping device according to the present invention in which the bending joint 1 according to the present invention is attached between two components. Can be adjusted by the effort during insertion of the clamp member 18 when properly used, and when each component makes relative movement, the relative movement of a single member of the flex joint 1 is Does not occur. As described with respect to FIG. 3, the clamp members 18 also have rounded edges with their axial ends bent away from the fastening portion 15 that abuts the second bending member 140, Stress is effectively avoided.

  As those skilled in the art will recognize in FIGS. 1-4, the mounting member 11 and the fastening portion 15 of the illustrated embodiment are each designed to be easily mounted to a component or shaft damper. For this purpose, the mounting member 11 and the fastening part 15 of the embodiment of FIGS. 1 to 3 are fastened so as to be perpendicular to the axial direction A offset with respect to the bent parts 12 and 14 arranged on the mounting member 11, respectively. Or provided on the fastening portion 15. A bushing that can guide the screw to fix the mounting member 11 to the component or a bushing to the shaft damper of the fastening part 15 is provided at the fastening part. On the other hand, the mounting member 11 and the fastening part 15 of the embodiment according to FIG. 4 have a connecting hole 19 designed as a screw hole. The bending joint 1 can be easily fixed to a part or an axial damper via a connecting hole 19 arranged along the axial direction, and is arranged perpendicularly in the axial direction at the center of the bending joint 1, for example, It can be fixed by screwing into a screw bolt arranged on the shaft damper. By providing the connecting hole 19, a space-saving design of the bending joint 1 is possible. The design of the bending joint 1 described with reference to the easy fixability of the bending joint is generally advantageous for the bending joint according to the invention.

  In the embodiment of the damping device 100 according to the invention, the shaft damper 20 is designed as a viscous damper and is shown in FIG. The shaft damper 20 includes a housing 21 and a piston 22, and the piston 22 is disposed so as to be displaceable in the axial direction with respect to the housing 21 within a displacement range. The piston 22 includes a first piston portion 221 disposed at an arbitrary position of the piston 22 within a displacement range outside the housing 21, and a second piston portion 222 immersed in the viscous fluid 23. Provided at an arbitrary position within the displacement range of the piston 22. In the damping device 100 shown in FIG. 5, the viscous fluid 23 is disposed in the housing 21 up to the filling level indicated by the broken line. Further, the piston 22 has a third piston portion 223 disposed in the axial direction between the first piston portion 221 and the second piston portion 222. A guide having three guide bands 24 guides the piston 22 so that the piston 22 can be reliably moved relative to the housing 21 without sliding. Here, two of the guide bands 24 are provided between the third piston portion 223 and the housing 22. In this case, the housing 21 is designed as a hollow cylinder whose cylindrical axis extends in the axial direction A, and the piston 22 is configured as a full cylinder in its third piston part 223, and its axis also extends along the axial direction and has its diameter. Is slightly smaller than the diameter of the hollow cylinder of the housing 21. The piston 22 forms a first connecting member at a first axial end where the first piston portion 221 is disposed. Therefore, the first connecting member is always disposed at an arbitrary position of the piston 22 with respect to the housing 21 outside the housing 21 and is axially separated from the first axial end of the housing. The housing 21 forms a second connecting member at a first axial end and a second axial end facing the first connecting member in the axial direction, and the first bent joint 1 is fastened to the first connecting member. Then, the second bent joint 1 is fastened to the second connecting member. The bending joints 1 used are each configured identically according to the embodiment of the bending joint according to the invention shown in FIG.

  In FIG. 5, the person skilled in the art can clearly understand the operating principle of the damping device according to the invention. For relative axial movement of the bending joint 1 arranged on the first and second connecting members of the shaft damper 20, any relative along the axial direction A between the mounting members 22 of the two bending joints 1. The force stress is directly converted in the axial direction relative to the housing 21. Any relative force stress along the axial direction A between the attachment members 11 of the two bend joints 1 is directly converted into a relative axial force between the piston 22 and the housing 21, whereby the piston 22 is in the housing. 21 in the axial direction. Since the piston 22 is always immersed in the viscous fluid 23 by the second piston portion 222, the attenuation of the axial relative motion between the attachment members 11 of the bending joint 1 is reduced by the shearing of the viscous fluid 23. This occurs due to surface wetting of the piston 22 and allows axial displacement of the piston 22 relative to the housing 21. On the other hand, the relative force acting perpendicularly to the axial direction A between the attachment members 11 of the two bending joints 1 is converted into bending of the bending joints 1 of at least the bending parts 12 and 14, thereby In the damper 20, no stress is applied to the connecting member by an excessively large force perpendicular to the axial direction A.

  A further embodiment of the damping device 100 according to the invention is shown in FIG. In this embodiment, as in the embodiment according to FIG. 5, the piston 22 is arranged to be movable in the axial direction on the housing 21 within a displacement range. The housing includes a working chamber 211 and a storage chamber 212. In the embodiment in FIG. 6, the viscoelastic medium 25 is arranged in the working chamber 211 of the housing 21 so as to fill the volume in the working chamber 211 not occupied by the piston 22. Therefore, the viscoelastic medium 25 constitutes a viscous medium of the shaft damper 20 of the damping device 100, and the piston 22 arranges the second piston portion 222 at any of the possible positions. On the other hand, the first piston part 222 is always arranged outside the housing 21 at any possible position of the piston 22 with respect to the housing 21. For simplicity, gaskets and guide bands (the design and arrangement of which are known to those skilled in the art) for hermetically guiding the piston 22 to the housing 21 are not shown in FIG.

As shown in FIG. 6, as already described with reference to FIG. 5, the piston 22 includes a first connecting member to which the first bending joint 1 is fixed to the first piston portion 212 at the first axial end portion. The housing is formed with a second connecting member at a second axial end opposite to the first axial end of the housing 21 in which the first connecting member is disposed. The second connecting member is here arranged in the axial direction of the working chamber 211 and is a receiving chamber 212 of the housing 21 designed to receive a piston part projecting beyond the second axial end of the working chamber 211. Placed on top. Therefore, the first axial end of the working chamber 211 forms the first axial end of the housing 21, and the second axial end of the storage chamber 212 forms the second end of the housing 21. The second axial end of the working chamber 211 supports the first axial end of the storage chamber 212. The bending joint 1 is also connected to the second connecting member.

  Accordingly, the damping device 100 according to FIG. 6 has similar advantageous properties according to the invention with respect to axial damping and damping, and as described for the damping device of FIG. 5, the damping device 100 for forces perpendicular to the axial direction. The load-bearing capacity is shown. However, the damping device 100 of FIGS. 5 and 6 differs depending on the operating principle of the shaft damper 20. Depending on the expected axial displacement path, on the basis of the axial displacement frequency and the axial displacement force expected for a given application of the damping device according to the invention, the damping device 100 according to the invention corresponds correspondingly. It can be used with an advantageously designed shaft damper 20. As will be appreciated by those skilled in the art, the embodiment of the damping device 100 shown in FIGS. 5 and 6 is clearly designed so that each includes only one flex joint 1. Furthermore, these embodiments can obviously have at least one bending joint 1 having the advantageous properties of the bending joint 1 according to the invention described above, in particular in one of FIGS. It is possible to have at least one bent joint 1 according to this.

DESCRIPTION OF SYMBOLS 1 Bending joint 11 Attachment member 12 1st bending part 13 Intermediate | middle part 14 2nd bending part 15 Fastening part 16 Angle member 17 Screw 18 Clamp member 19 Connecting hole 20 Shaft damper 21 Housing 22 Piston 23 Viscous fluid 24 Guide band 25 Viscoelastic medium 100 Damping device 110 Fixed flange 120 First bending member 130 Fixed flange 140 Second bending member 150 Fixed flange 161 Pressing portion 162 Supporting portion 211 Working chamber 212 Storage chamber 221 First piston portion 222 Second piston portion 223 Third piston portion A Axial direction

Claims (15)

A damping device (100) for mounting between two separate components to damp vibrations between components,
A damping device (100) as a shaft damper (20) including a first connecting member and a second connecting member,
The first connecting member is connected to the second connecting member by an attenuation portion by ensuring axial relative movement of the two connecting members,
The attenuator is designed to attenuate axial relative movement between the connecting members;
The damping device (100) comprises a bending joint (1) fixed to one of the connecting members,
The bending joint (1) has an attachment member (11) for attachment to one of the components,
The bending joint (1) is designed as a continuous rigid interconnection member, and has a joint portion extending in the axial direction between the connection member fixed to the bending joint (1) and the attachment member (11),
The bending joint (1) is elastically bent at its joint part by at least one rotating shaft perpendicular to the axial direction,
Having at least one axial bend (12, 14) associated with exactly one rotational axis perpendicular to said axial direction (A), the axial end in the direction of the force along the rotational axis Maintaining rigidity with respect to bending stress applied to itself by the relative force applied to the part,
The bent portion has a plate-like shape in which the planar extension portion is fixed by the axial direction (A) and a rotation axis related thereto,
The bent portion is less than 5% of the axial length of the bent portion, and has an extension length in a direction perpendicular to the rotational axis and perpendicular to the axial direction, which is related to the bent portion;
The bend has an extension length along the associated rotation axis that is at least four times greater than the extension length of the bend in a direction perpendicular to the associated rotation axis and perpendicular to the axial direction;
The damping device (100), wherein the joint portion of the bending joint (1) is made of a solid material. Attenuator (100) according to claim 1, comprising:
The shaft damper (20) and the bending joint (1) are designed as separate components of the damping device (100)),
The said bending joint (1) has a fastening part (15) fastened by the said connection member, The damping device (100) characterized by the above-mentioned. Attenuator (100) according to any of claims 1 and 2, comprising:
The damping device (100) includes a first bent joint (1) fixed to the first connecting member and a second bent joint (1) fixed to the second connecting member. Device (100). Attenuator (100) according to any of claims 1 to 3, comprising:
When the attachment member (11) is stressed against the connecting member by a force perpendicular to the axial direction (A) and perpendicular to the rotation axis, the bending joint (1) is axially directed to the bending portions (12, 14). The bending device (100) is characterized in that the bending joint (1) is bent only within the extension of the wire. Attenuator (100) according to any of claims 1 to 4, comprising:
The joint portion includes a first bent portion (12) and a second bent portion (14) arranged rearward in the axial direction (A),
The bent joint (1) has a first bent portion (12) bent around a first rotation axis perpendicular to the axial direction (A), and is perpendicular to the axial direction (A) and the first rotation axis. A damping device (100), characterized in that a second bend (14) is arranged around the second rotation axis. Attenuator (100) according to claim 5,
Between the axial direction (A) of the first bent portion (12) and the second bent portion (14), an intermediate portion 13 having rigidity for connecting the bent portions (12, 14) is provided. A damping device (100) characterized by Attenuator (100) according to claim 6, comprising:
The intermediate portion (13) is extended in all three dimensions, which is at least four times the extended length of each of the bent portions (12, 14) along a direction perpendicular to the axial direction (A). And a damping device (100) characterized in that the damping device (100) is arranged perpendicularly to each axis of rotation. Attenuator (100) according to any of claims 1 to 7, comprising
At least one bend (12, 14) is made of only one material;
The thickness of the material in the bent portion (12, 14) is 5% in the direction perpendicular to the rotation axis related to the bent portion (12, 14) with respect to the direction perpendicular to the axial direction (A). Less than, in particular less than 3% of the axial length of the bent joint (1), in particular less than 5% of the axial length of the bent part (12, 14) and / or its associated rotation. The stretched length of at least one bend (12, 14) along the axis is at least twice, in particular has a length that is at least 4 times the stretched length of the bend (12, 14). Attenuator (100). Attenuator (100) according to any of claims 1 to 8, comprising:
Attenuator (100) characterized in that said bend (1) is made in one piece from a single material. Attenuator (100) according to any of claims 1 to 9, comprising:
The bent joint (1) has a first flange fixed to the first connecting member or the second connecting member, and a second flange forming an attachment member (11) of the bent joint (1). Attenuator (100). Attenuator (100) according to any of claims 1 to 10, comprising:
The shaft damper (20) is designed as a viscous damper having a housing (21) and a piston (22),
The piston (22) is disposed so as to be axially displaceable with respect to the housing (21) within a displacement range,
Viscous media (23, 25) are provided in the housing (21),
The piston (22) is disposed together with a first axial piston portion (221) outside the housing (21) and protrudes on a first axial end portion of the housing (21), and the housing (21) Including an internal second axial piston portion (222), immersed in a viscous medium (23, 25),
The first connecting member is disposed at a first axial end of the piston (22), and the second connecting member is disposed at a second axial end of the housing (21). (100). A system comprising at least two attenuation devices (100) according to any of the preceding claims,
The axial direction (A) of the first damping device (100) is formed at an angle of at least 30 degrees, in particular 60 to 120 degrees, with the axial direction (A) of the second damping device (100). System. A method of using a bent joint (1) having a fastening portion (15), comprising:
The mounting member (11) is arranged at an interval in the axial direction (A) from the fastening portion (15), and the fixing portion (15) is designed as a continuous rigid interconnection component,
Can be elastically bent around at least one axis of rotation perpendicular to the axial direction (A);
The axial damper (20) is designed to damp relative movement of the two components in the axial direction (A),
The joint portion of the bending joint (1) has at least one axial bending portion (12, 14) associated with exactly one rotation axis perpendicular to the axial direction (A), and a force along the rotation axis. Maintaining stiffness with respect to bending stress applied to itself by the relative force applied to the axial end in the direction of
The bent portion has a plate-like shape in which the planar extending portion is fixed by the axial direction (A) and a rotation axis related thereto,
The bent portion is less than 5% of the axial length of the bent portion, and has an extension length in a direction perpendicular to the rotational axis and perpendicular to the axial direction, which is related to the bent portion;
The bend has an extension length along an associated axis of rotation and is at least four times the extension length of the bend in a direction perpendicular to the axis of rotation and perpendicular to the axis;
The joint part of the bending joint (1) is made of a solid material,
The bending joint (1) has a fastening portion (15) fixed to a shaft damper (20) and an attachment member (11) fixed to a component part. A bending joint (1) for use in the damping device (100) according to any of claims 1 to 11,
The bending joint (1) has a fastening part (15) that can be attached to one of the two connecting members of the shaft damper (20),
The bending joint (1) has an attachment member (11) for attachment to one of the components,
The bent joint (1) is a component member that is continuously and firmly interconnected, and has a joint portion extending in the axial direction between the fastening portion (15) and the attachment member (11),
The bent joint (1) can be bent elastically at its joint around at least one axis of rotation perpendicular to the axial direction (A),
Having at least one axial bend (12, 14) associated with exactly one rotational axis perpendicular to said axial direction (A), the axial end in the direction of the force along the rotational axis Maintaining rigidity with respect to bending stress applied to itself by the relative force applied to the part,
The bent portion has a plate-like shape in which a planar extending portion is fixed by an axial direction (A) and a rotation shaft related thereto,
The bent portion is less than 5% of the axial length of the bent portion, and has an extension length in a direction perpendicular to the rotational axis and perpendicular to the axial direction, which is related to the bent portion;
The bend has an extension length along the associated rotation axis that is at least four times greater than the extension length of the bend in a direction perpendicular to the associated rotation axis and perpendicular to the axial direction;
The bending joint (1), wherein the joint portion of the bending joint (1) is made of a solid material. A method of attaching an axial damper (20) designed to damp relative motion in the axial direction (A) between two components, comprising:
The axial end of the bending joint (1) is fixed to the axial end of the axial damper (20),
The bending joint (1) has a bent portion that can be bent elastically around at least one axis of rotation perpendicular to the axial direction;
Having at least one axial bend (12, 14) precisely associated with one rotational axis perpendicular to said axial direction (A), the axial end in the direction of the force along the rotational axis Maintaining rigidity with respect to bending stresses exerted on itself by relative forces applied to the part,
The bent section is in the form of a plate with a planar extension fixed by the axial direction (A) and its associated rotation axis,
The bent portion is less than 5% of the axial length of the bent portion, and has an extension length in a direction perpendicular to the rotational axis and perpendicular to the axial direction, which is related to the bent portion;
The bent portion has a length extending along an associated rotation axis, and is at least four times the extension length of the bent portion in a direction perpendicular to the associated rotation axis and perpendicular to the axial direction. ,
The joint part of the bending joint (1) is made of a solid material,
A method of attaching an axial damper (20), characterized in that the other axial end of the flex joint (1) is fixed to one of the components.

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